diff --git a/mtl-prelude.cabal b/mtl-prelude.cabal
--- a/mtl-prelude.cabal
+++ b/mtl-prelude.cabal
@@ -1,7 +1,7 @@
 name:
   mtl-prelude
 version:
-  2.0.1
+  2.0.2
 synopsis:
   Reexports of most definitions from "mtl" and "transformers" 
 description:
@@ -13,7 +13,7 @@
   In combination with the <http://hackage.haskell.org/package/base-prelude "base-prelude"> library,
   this should give you a quite rich prelude.
   .
-  The @2.*@ versions are are restricted by 
+  The @2.*@ versions are restricted by 
   the feature set of @mtl == 2.2.*@ and @transformers == 0.4.*@.
 category:
   Prelude
@@ -52,7 +52,8 @@
     MTLPrelude
   build-depends:
     transformers == 0.4.*,
-    mtl == 2.2.*
+    mtl == 2.2.*,
+    base < 5
   default-extensions:
     NoImplicitPrelude
   default-language: